diamond in the rough
Meaning
A person or thing with great potential or value that is not yet refined, developed, or recognized.
Origin
From the idea that a diamond found uncut in its natural state looks dull and ordinary; once cut and polished, its true brilliance appears. The phrase is often linked to 17th–18th century usage and was popularized in English literature (e.g., Shakespeare’s “a jewel in a ten-times-barr’d-up chest”).
Notes
Complimentary: highlights hidden potential despite rough manners/skills/appearance. Used for people or things. Can sound patronizing if said directly to someone.
Examples
-
The new intern is a diamond in the rough—she has great ideas but needs some guidance.
-
That neighborhood café is a diamond in the rough: the décor is plain, but the coffee is outstanding.
-
He was a diamond in the rough when we hired him, and now he’s one of our best engineers.
-
The manuscript is a diamond in the rough; with editing, it could become a bestseller.
-
She comes off as blunt, but she’s a diamond in the rough with a huge heart.
Grammar & Usage Notes
Typically used as a noun phrase with an article: “a diamond in the rough.” Often follows “is/was” or appears as an appositive: “He’s a diamond in the rough.” Plural: “diamonds in the rough.”
Synonyms
- hidden gem
- rough gem
- unpolished talent
- a gem
Antonyms
- finished product
- polished professional
- refined person